Polarisation coupler
Polarisation insensitve PM coupler (PIPMC 1x2 or 2x2)
The PIMPMC can work at designed coupling ratio at both fast and slow axis.
Parameters | Unit | P grade | A grade | P grade | A grade |
Wavelength range | nm | 980,1060 ±20 | 1310, 1480, 1550 ±20 | ||
Excess loss (typical) | dB | 0.6 | 0.8 | 0,4 | 0.6 |
Excess loss | dB | ≤0.8 | ≤1.0 | ≤0.6 | ≤0.8 |
Polarisation dependent loss | dB | ≤0.1 | ≤0.2 | ≤0.1 | ≤0.2 |
Polarisation extinction ratio | dB | ≥18 | ≥15 | ≥20 | ≥14 |
Operating power | W | 2 | |||
Package | W | Φ3xL54 or other package size |
Polarisation maintaining coupler (1x2 or 2x2)
PMC is built with FBT technique with PM fiber and is widely used for optical sensors and optical gyro, etc.
Its coupling efficiency can be easily adjusted upon customer's request.
Parameters | Unit | P grade | A grade | P grade | A grade |
Wavelength range | nm | 980,1060 +/-20980,1060 ±20 | 1310, 1480, 1550 ±20 | ||
Excess loss (typical) | dB | 0.6 | 0.8 | 0,4 | 0.6 |
Excess loss | dB | ≤0.8 | ≤1.0 | ≤0.6 | ≤0.8 |
Polarisation dependent loss | dB | ≤0.1 | ≤0.2 | ≤0.1 | ≤0.2 |
Polarisation extinction ratio | dB | ≥18 | ≥15 | ≥20 | ≥14 |
Operating power | W | 2 | |||
Package | W | Φ3xL54 or other package size |